摘要
针对原地爆破浸出的爆破筑堆技术,采用SHPB试验数据和数值模拟的方法确定炮孔粉碎区、裂隙区域的范围,并据此对爆破筑堆块度进行有效的预测。该方法操作简单、费用低、时间短,为相关爆破筑堆块度理论分析和调整爆破孔网参数提供了新的方法和思路。
Blasting fragmentation is mostly determined by ore sampling and screening after blasting in the present study. This method needs to determine parameters by means of conditional experiment of field blasting with high cost and long time. A new method of using SHPB test data and numerical simulation is presented. The areas of blasthole crushing zone and fissure zone can be determined with the new method, and the blasting fregmentation can be effectively forecasted according to the determined area. The new method is simple in operation, requires little time and low cost. A new method and idea are provided for the theoretical analysis of blasting fragmentation and adjusting the blasting parameters.
出处
《铀矿冶》
CAS
2009年第2期57-61,共5页
Uranium Mining and Metallurgy
关键词
SHPB试验
爆破筑堆
块度
粉碎区
SHPB test
stope leaching
blasting fragmentation
crushing zone
